This traffic sign is displayed on the right-hand kerbside. What does it indicate?

Your answer is correct. This traffic sign indicates the start of an absolute no-stopping zone on the right-hand side. According to German traffic rules, an absolute no-stopping zone means you are not allowed to stop your vehicle at any time except in emergencies. Vehicles must not even pause briefly to pick up or set down passengers or goods. Understanding this sign helps ensure traffic flow and safety, especially in areas where stopping could obstruct other road users or pose a danger.